1000011213421 has 8 divisors (see below), whose sum is σ = 1091256309504. Its totient is φ = 908821948320.

The previous prime is 1000011213403. The next prime is 1000011213427. The reversal of 1000011213421 is 1243121100001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1000011213421 - 2¹¹ = 1000011211373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000011213395 and 1000011213404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000011213427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13920285 + ... + 13991938.

It is an arithmetic number, because the mean of its divisors is an integer number (136407038688).

Almost surely, 2^{1000011213421} is an apocalyptic number.

1000011213421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1000011213421 is a deficient number, since it is larger than the sum of its proper divisors (91245096083).

1000011213421 is a wasteful number, since it uses less digits than its factorization.

1000011213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27915491.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1000011213421 its reverse (1243121100001), we get a palindrome (2243132313422).

The spelling of 1000011213421 in words is "one trillion, eleven million, two hundred thirteen thousand, four hundred twenty-one".